Hmm I don’t know if that’s entirely true. You need to look at other factors like living expenses and cash flows because those relate to your volatility tolerance.
If the ten bitcoin are all your assets, you must sell a small piece weekly/monthly to pay your bills (assuming no other fiat cash flow). I’d argue for someone in that situation, having a hodl forever stack and then using some portion of the 300k for living expenses may be more logical.